First, ensure that the device is receiving power by checking the power supply and connections. Next, verify that the device is properly programmed and configured within the fire alarm control panel. If these steps don’t resolve the issue, try replacing the strobe with a known working unit to see if the problem lies with the device itself or its installation. Additionally, check for any physical damage or obstructions that may be affecting the strobe’s operation. If the problem persists, it may require further investigation or professional assistance to diagnose and resolve.